The explorer is running in 'regtest' mode. This saves disk space, but there is limited data.
The code for this application can be found at github.com/pdxrod/blockchain_explorer.

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Enter a block height, e.g. 123, or the start of a bitcoin address, e.g. mxMfLjAez

Height: 1710
Hash: 4f225f0008f30575f5386c686b79c8c4c967d8eba5ab73e2f2a70de9d8a67edc
Previous block: 5cc7c1988580b0a5572dc736e799d802b7539093aa41ba56a9d7f761fc4fe4da
Next block: 5775fb906ee4feef187833515de06fffbda3d85cf5cc9d6064e7564eb4fb2634
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1719159208
Stripped size: 218
Size: 254
Nonce: 0
Merkle root: 1eaeb6c6d8e673eb63a8115a7882afecf1b360b966993a8612d9136a82fa7d11
Median time: 1719159207
Difficulty: 4.656542373906925e-10
Confirmations: 534
Chainwork: 0000000000000000000000000000000000000000000000000000000000000d5e
Bits: 207fffff